Twin Neck, Guitar and Bass

Hi to all out there - still very busy and lacking in posts - I'm still here, honest! : )

This is a bit of a request to readers, a Twin Neck or Double Neck question.
I have/have had various twins, some shown below:

There are several more than this but none have Guitar on the top and Bass on the bottom.
I very nearly had a Shergold with that configuration but it slipped through my fingers.

Anyone know of 6 on the top and 4 on the bottom Twin Necks?

You can either leave me a message on comments or ping me at contactflateric(@)gmail.com.

I would love some feedback on this - there is a very good reason. : )

Cheers. : )